Water-bottle stopper



Aug. 2a. 1924. y15061106 H..P. KRAFT WATER BOTTLE STOPPER vFiled April 2O 1921 'Fb'gf Patented Aug.. Z6, 1924.,

UTED STATES HENRY Il?. KRAFT, Gli RIDGEWOD, NEW JERSEY.

WATER-BOTTLE STGPPER.

Application ilegl April 20, 1921. Serial No. 463,010.

` Tater-Bottle Stoppers, of which the following is a specification.

his invention relates to stopper-s for water bottles or the like, and aims to provide certain improvements therein.

rEhe invention is directed to a water bottle stopper which is preferably formed principally of sheet metal of the type in which the packing gasket is located near the top of the stopper, the` latter being provided below the gasket with screw-threads which are adapted to engage similar threads on the socket member. One of the objects of the invention is to provide a stopper of this typ-e in which the packing is so housed and supported that it is protected from spreading, thereby enhancing its durability. Means are also provided for maintaining it in place on the stopper, so that it is not likely to become disconnected therefrom. A further object of the invention in its preferred form is to provide a stopper of smaller diameter than those commonly used, and to construct such a stopper mainly from the parts of the standard stopper, thereby simplifying the manufacturing operations.

ln the drawings, which illustrate several forms of the invention,-

Figure l is a side view of the stopper, showing the bag and parts of the socket member in section.

Fig. 2 is a plan of the stopper.

Fig. 3 is an enlarged sectional view, showing the stopper in process of manufacture.

Fig. 4 is a sectional view, partly in elevation, showing one means for retaining the packing washer.

Fig. 5 is a similar view, showing another means accomplishing this result.

Fig. 6 is a view of the preferred form.

Referring to the drawings, let A indicate the mouth of a water bag and B the socket member which is vulcanized in placev in the usual way. C is the stopper as a whole which comprises a body portion D, a top portion E and handle member F.

In the preferred form of the invention the body portion D is formed as a screwthreaded sheet metal cap, as best illustrated in Fig. 3, and the top member' E is formed originally as a shallow cup, in the raised central. portion of which is preferably located a washer G, the handle passing through the metal of the topi, and the washer, and being riveted, as shown. This construction per se is that of the standard stopper. ln case other types of handles and wire are employed, a similar method of connection is adopted.

The top is joined to the body portion preferably by means of a flange H formed on the body portion and a flange l formed on the top portion, the flange I underlying the flange H, as shown. A reversal of this is permissible, but a better construction is secured by the construction illustrated.

The dimensions of the standard stopper are such as are illustrated in Figure 3, and the body portion D is of larger diameter, but in the case of the small dian'ieter stopper the part J and flange l of the top portion are turned downwardly to the position illustrated in Figures 4 or 5. This provides a recess enclosed on three sides for the reception of the packing washer K, which is preferably of such depth that the packing washer is wholly or nearly enclosed within the recess, the lower face of the washer contacting against a flange L on the socket member which forms a seat. Without a special means being employed for this purpose, the packing washer is adequately held in place by the construction just described, but if desired the body D may be formed with a slight groove or depression at its top, as indicated at M in Fig. 4, for the reception of the washer, or as illustrated in Fig. 5, the flange formed by the parts H, l, l indicated as a whole by the letter 0 in F 4- and may be tapered. As shown in Fig. 6, if desired, both of these forms may be adopted, and in either or both there is a por tion of metal underlying the packing washer, which tends to prevent any possibility of its slipping down over the threads of the body portion.

lfn the construction just described a very strong and durable stopper is provided. The triple thickness of the flange O is not only useful in protecting the flange against bending, but the construction also materially stiffens the entire structure. Great pressure can be put upon the packing without in any way distorting either the stopper or the packing. abled to use the saine top and handle for either the standard stopper or the present smaller type. `In constructing either de vice the top is best cupped with the flange I extended downwardly, as indicated in dotted lines in Figure 3, and a body portion of either type is slipped in and the flange turned. In the standard type since the packing Washer' is at the bottom of the body portion7 there is no necessity for a seco-nd turning of the flange. But in the present type with the top packing, a single additional operation suffices to provide the durable and effective recess for the packing Washer herein described.

Thile I have shown and described several forms,` of the invention, it Will be understood that I do not Wish to be limited there- In manufacturing, I ain en' to since various changes may be niade there` in Without departing from the spirit of the invention.

What I claim is A stopper of the class described, having' a body portion and a top portion formed ol'l sheet metal, the top portion having a flat flange and the body portion having 'a flat flange, the flange on the topportion being turned beneath the flange of the body portion to provide an overlapping intel-engagement therebetween, and the overlapping portion of the resulting vflange being turned down to form with the Wall of the body portion, a recess for the packing Washer.

In Witness whereof, I have hereunto signed iny naine.

HENRY P. KRAFT. 

